shelly-bulk-update

Automatically updates the firmware of all your Shelly devices at once.

Supports Gen1, Gen2, and Gen3 devices. Progress is shown in a live terminal UI that updates in real time as devices are discovered and updated.

Installation

Download the latest binary for your platform following the instructions on the Releases page.

Usage

Ensure you are on the same network as your Shelly devices. Then run the binary:

./shelly-bulk-update

It will automatically discover all your Shelly devices using mDNS and attempt to update them to the latest stable version if possible.

Please note:

• The initial discovery can take up to 1 minute.
• While updates are in progress and devices are restarting, you might see connection errors. Sometimes it takes a few minutes, please be patient :-)

Authentication

If any (or all) of your devices have authentication enabled, use the -password flag:

./shelly-bulk-update -password MyPa$$w0rd

For Gen1 devices you can also specify a username (default: admin):

./shelly-bulk-update -username admin -password MyPa$$w0rd

Firmware channel

To update to the latest beta firmware instead of stable, use -stage=beta:

./shelly-bulk-update -stage=beta

Device generation filter

To target only a specific device generation, use the -gen flag:

Flag	Targets
-gen=1	Gen1 devices only
-gen=2	Gen2 devices only
-gen=3	Gen3 devices only
(omitted)	All generations

For example, to update all Gen2 devices to the latest beta while keeping Gen1 devices on stable:

./shelly-bulk-update -gen=2 -stage=beta